The word(s) "gain" appears 351 time(s) in 314 verse(s) in Quran in Mohsin Khan translation.

(131) And [Yusuf (Joseph)] told his servants to put their money (with which they had bought the corn) into their bags, so that they might know it when they go back to their people; in order they might come again.

(132) And he said: "O my sons! Do not enter by one gate, but enter by different gates, and I cannot avail you against Allah at all. Verily! The decision rests only with Allah. In Him, I put my trust and let all those that trust, put their trust in Him."

(133) And when they entered according to their father's advice, it did not avail them in the least against (the Will of) Allah; it was but a need of Ya'qub's (Jacob) inner-self which he discharged. And verily, he was endowed with knowledge because We had taught him, but most men know not.

(134) Do they then feel secure from the coming against them of the covering veil of the Torment of Allah, or of the coming against them of the (Final) Hour, all of a sudden while they perceive not?

(135) For them is a torment in the life of this world, and certainly, harder is the torment of the Hereafter. And they have no Waq (defender or protector) against Allah.

(136) And thus have We sent it (the Qur'an) down to be a judgement of authority in Arabic. Were you (O Muhammad صلى الله عليه و سلم) to follow their (vain) desires after the knowledge which has come to you, then you will not have any Wali (protector) or Waq (defender) against Allah.

(137) And they all shall appear before Allah (on the Day of Resurrection); then the weak will say to those who were arrogant (chiefs): "Verily, we were following you; can you avail us anything against Allah's Torment?" They will say: "Had Allah guided us, we would have guided you. It makes no difference to us (now) whether we rage, or bear (these torments) with patience; there is no place of refuge for us."

(138) Say (O Muhammad صلى الله عليه و سلم) to 'Ibadi (My slaves) who have believed, that they should perform As-Salat (Iqamat-as-Salat ), and spend in charity out of the sustenance We have given them, secretly and openly, before the coming of a Day on which there will be neither mutual bargaining nor befriending.

(139) This (Qur'an) is a Message for mankind (and a clear proof against them), in order that they may be warned thereby, and that they may know that He is the only One Ilah (God - Allah) - (none has the right to be worshipped but Allah) - and that men of understanding may take heed.

(140) [Ibrahim (Abraham) again] said: "What then is the business on which you have come, O Messengers?"